ScrollView 的父子層次如下：

在ScrollView中新增的元件如下

在ViewPort中新增的元件如下：

在Content中新增的元件如下：

在ScrollView 中繫結的指令碼如下：

using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using UnityEngine.EventSystems;
using System;

public class ScrollViewTest : MonoBehaviour,IBeginDragHandler,IEndDragHandler {

    private
 
 ScrollRect scrollRect;
    private float[] rateArr;
    //獲取Content的RectTransform
    private RectTransform contentTransform;
    //設定新增的預製體
    public RectTransform itemTransform;
    // Use this for initialization
    void Start () {
        //獲取自身的ScrollRect元件
        scrollRect = GetComponent<ScrollRect>();
        contentTransform = transform.Find("ViewPort"
 
).Find("Content").GetComponent<RectTransform>();
    }

    // Update is called once per frame
    void Update () {
        //按A鍵新增子物體
        if (Input.GetKeyDown(KeyCode.A))
        {
            Transform temp = Instantiate(itemTransform).transform;
            temp.SetParent(contentTransform);
            temp.localPosition = Vector3.zero;
            temp.localRotation = Quaternion.identity;
            temp.localScale = Vector3.one;
        }
    }
}